Wireless communication system

Abstract

A plurality of MTC devices can connect to a base station device efficiently. The base station device receives a request signal for requesting access to the base station device from MTC devices in group A that can transmit data to the base station device using a predetermined application data format. The base station device allocates radio resource to an MTC device operating as a gateway, among the MTC devices in group A. The MTC device operating as a gateway receives video data from an MTC device not operating as a gateway in group A. The base station device transmits the video data received from the MTC device not operating as a gateway to the base station device using the allocated radio resource.

1 . A wireless communication system comprising: a plurality of communication devices each performing machine communication; and a base station device performing wireless communication with the plurality of communication devices,
 the base station device including   a reception unit for receiving a request signal for requesting access to the base station device from, of the plurality of communication devices, each of communication devices in a first group that can transmit data to the base station device using a first application data format, and   an allocation unit for allocating first radio resource to a communication device operating as a gateway, of the communication devices in the first group,   the communication device operating as the gateway including   a reception unit for receiving the data from each communication device not operating as the gateway in the first group, and   a transmission unit for transmitting the data received from each communication device not operating as the gateway, to the base station device using the first radio resource.   
     
     
         2 . The wireless communication system according to  claim 1 , wherein each of the communication devices in the first group transmits, to the base station device, a request signal for requesting access to the base station device, using second radio resource. 
     
     
         3 . The wireless communication system according to  claim 2 , wherein
 the base station device   determines a communication device to function as the gateway from among the communication devices in the first group, and   announces information for specifying the gateway in the first group to each of communication devices other than the communication device to function as the gateway in the first group, through the base station.   
     
     
         4 . The wireless communication system according to  claim 2 , wherein
 the base station device allows, of the communication devices in the first group, a plurality of communication devices to function as gateways, and   of a plurality of communication devices in the first group, each communication device not operating as a gateway transmits the data to the base station device through any one of the gateways.   
     
     
         5 . The wireless communication system according to  claim 1 , wherein
 of the plurality of communication devices, each of communication devices in a second group that transmit data to the base station device using a second application data format transmits the data to the base station device, through the communication device operating as a gateway in the first group.